From ff0c559329bd3fc8c63215b835ba65791e85a0da Mon Sep 17 00:00:00 2001
From: Philip Langdale <philipl@overt.org>
Date: Sat, 24 Jan 2015 12:52:58 -0800
Subject: [PATCH] nvenc: Propagate desired number of reference frames.
Reviewed-by: Timo Rothenpieler <timo@rothenpieler.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
libavcodec/nvenc.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c
index 7d82d58c3c9..16ef93ff82f 100644
--- a/libavcodec/nvenc.c
+++ b/libavcodec/nvenc.c
@@ -590,6 +590,11 @@ static av_cold int nvenc_encode_init(AVCodecContext *avctx)
memcpy(&ctx->encode_config, &preset_config.presetCfg, sizeof(ctx->encode_config));
ctx->encode_config.version = NV_ENC_CONFIG_VER;
+ if (avctx->refs >= 0) {
+ /* 0 means "let the hardware decide" */
+ ctx->encode_config.encodeCodecConfig.h264Config.maxNumRefFrames = avctx->refs;
+ }
+
if (avctx->gop_size >= 0) {
ctx->encode_config.gopLength = avctx->gop_size;
ctx->encode_config.encodeCodecConfig.h264Config.idrPeriod = avctx->gop_size;
--
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